Stove



3' Sheets-Sheet 1.

I H. HEIM.

STOVE.

Patented Nov. 20, 1888;

(NoModeL) 3 Sheets-Sheet 2;

(No Model.)

' H. HEIM.

STOVE.

Patented Nov. 20, 1888.

N PETERS, Phmoulfwgraphr, Washington. nc.

3 Sheets-Sheetfi.

(No Model.)

H. HEIM.

STOVE.

No. 893,231. Patented Nov. 20, 1888.

Y O 0000 0 oo o O 000 00 o 0 69000 O 00 UNITED STATES PATENT OFFICE,

HERMANN HEIM, OF OBER-DOBLING, NEAR VIENNA, AUSTRIA-HUNGARY.

STOVE.

SPECIFICATION forming part of Letters Patent No. 393,231, dated November20, 1888.

Application filed June 11, 1886. Serial No. 204,865. (No model.)Patented in Germany May 8, 1886, No. 38, H87; in France May 8, 1886, No.176,011; in Belgium May 8, 1886, No. 73,041; in England May 11. 1886.No. 6,376,- in Italy March 31, 1887, XXI, 21,287, and XLII, 115, and inAustria-Hungary April 4, 1887, No. 41,442 and No. 6,689.

To all whom it may concern:

Be it known that I, HERMANN HEIM, manufacturer,a subject of the Emperorof Austria Hungary, residing at Ober-Dobling, near Vienna, in theProvince of Lower Austria, in the Empire of Austria-Hungary,haveinventedcertain new and useful Improvements in Stoves, (for which I haveobtained Letters Patent in the following countries: In Austria-Hungaryby Letters Patent, Vienna, No. 41,442, and Buda Pesth, No. 6,689, datedApril 4, 1887 in Germany by Letters Patent No. 38,987, dated May 8,1886; in France by Letters Patent No. 176,011., dated May 8, 1886; inBelgium by r 5 Letters Patent No. 73,041, dated May 8, 1886; in Englandby Letters Patent No. 6,376, dated May 11, 1886, and in Italy by LettersPatent, Vol. XXI, No. 21,287, and Vol. XLII, No. 115, dated March3l,1887 5) and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and 2 to letters or figures ofreference marked thereon, which form a part of this specification.

Referring to the drawings, Figures 1 and 2 show in vertical centralsections, at right angles to each other, astove constructed accord- 0ing to my invention. Figs. 3 and 4 are like views of the lower part ofthe fire-pot, show ing a modification in the construction thereof. Fig.5 is a horizontal section taken on line 1 1 of Fig. 8. Fig. 6 shows by aplan view a ring 3 5 to be arranged in the fire-pot above the grate toprotect the wall of the firepot against the action of the fire. Figs. 7and 8 are horizontal sections taken online 2 2 and 3 3, respectively, ofFig. 1. Fig. 9 is a plan view of a plate designed for introductionbetween the grate and fuel when said grate is to be removed. Fig. 10 isa view of the tool for removing the cover from the feed-hopper. Fig. 11is an elevation of a portion of the interme- 5 diate casing, M and Figs.12 and 13 are detail views showing by a vertical section and under sideview, respectively, the draft-regulating devices.

The invention relates to that class of stoves in which the fuel ischarged into the fire-pot and onto the grate from the top or from nearthe top of the stove; and it has for its object certain improvementswhereby access may readily be had to any portion of the stove, andwhereby better results are obtained and such stoves rendered moreefficient in operation.

The invention consists in structural features and combinations of parts,substantially as hereinafter described, and particularly pointed out inthe claims.

In the drawings, P indicates the fire-pot, which is composed of ahead-section, P, a grate-section, P", and one or more intermediatesections, P. The said sections are preferably cylindrical incross-section, but may be of any other form in cross-section and adaptedto be fitted one on top of the other. The head-section P has a shortflue, p, to which the stove pipe is attached, and it has also aninwardlyprojecting charging-hopper, p, the mouth of which that opensinto the fire-pot has its inner periphery made tapering inwardly orconical to' form a conical seat for a cover or lid, L, that has asocket, Z, by means of which and the poker (shown in Fig. 10) or otherlike instrument said lid may be readily removed or replaced. The generalform of the charging hopper is conical, though it may be of any otherformas, cylindrical, prismatic, spheroidal, or pyramidaland projectsinto the fire-pot at an angle to the vertical axis thereof.

The grate section or chamber and ash-pit are of the form of a bent tubeor segment of a hollow ring, semicircular or rectangular incross-section, as shown in Figs. 1 and 2 and 3 and 4, respectively. Itis provided with a tubular foot-piece, F, that is seated on an annularseat'plate, B, formed with the base B of the stove and connected theretoby radial arms I).

The object in making the foot of the firepot hollow is to provide an airchamber through which air can freely circulate and prevent the bottom ofthe firepot from becoming unduly heated or from setting fire to thefloor on which the stove may stand, the walls of said air-chamber beingprovided with perforations b for the free circulation of the airtherethrongh.

As shown in Figs. 1 and 2, the sections which compose the fire-pot orstove proper are so constructed as to readily seat one on the other byoverlappingjoints, and the intermediate sections, 1", are preferablyprovided with radiating ribs 0*, not only for increasing theradiating-surfaces of the stove, but also for the purpose of holding theinner casing in proper position, as hereinafter described.

To protect the section P immediately above the grate-section I from theaction of the fire on thegrate, Iprefer to interpose between itand thesaid grate-section 1 a east-iron ring, R, Figs. 1 and 2, which, in orderto give it greater strength, I prefer to construct as shown in Fig. 3,having the seats r and 1- formed by its semi-cylindrical periphery,aportion of which is cut away to form the seat r. One-half (more or less)of this ring is of greater vertical diameter or height than theremaining portion, the upper edge of the gratesection I being shaped toreceive this ring, so as to form a sort of interlocking joi nt at r toprevent the sections from rotating on each other.

G is the grate, of any desired or usual construction,supported on aflange, 7, or on lugs formed on or projecting from the inner wall of thegratesection, so as to adapt the said grate for ready removal; and, ifdesired, a vertical grate, G, Figs. 3 and 4-, may be arranged on thefront side and within the section 1? above grate Ufor theint-roductionof a poker for stirring up the fire.

\Vhen it becomes necessary to remove the grate G while there is fire inthe stove, I provide a grate, G", that consists of a perforated plate,Fig. 12, adapted to be introduced into the fire-pot above the grates (land G, as shown in Figs. 3 and 4, to prevent the fuel from falling downinto the ash-box A.

For the purpose of regulating the draft, I employ a door, I), that ishung from a horizontal pivot or hinge-pintle, I), on which said door isnot only free to swing, but also free to slide longitudinally, and whenswung wide open will lie against lugs Z Z, formed on and projectingvertically from the bearings L of the door-hinge pintle I). The door Dis of such dimensions as to entirely cover the mouth or open front ofthe-grate-section I? when in proper position, and it will be readilyunderstood that by sliding said door more or less to one or the otherside along its hingepintle the said mouth or open front will be more orless uncovered and the draft thereby regulated.

In order that the draft when once adjusted may not be interfered with byunauthorized persons, I provide a lock for said door, which consists ofa spring-bolt, I)", one end of which engages a rack-band", on theunderside of the grate-section 1", and whose other end is screwthreadedfor the reception of a key, (I, by means of which the bolt 1) may bewithdrawn from the raclebar d, as more plainly shown in the detachedviews, Figs. 13 and 14. The belt is arranged within a tubular ease, d,projecting from the edge of the door or draft-slide D.

The several sections of the fire-pot are secured together and to thebase B by means of tie-rods E E, one end of which is hooked and engagesthe -adial arms b of the base B, the other ends of said rods beingscrew-threaded for the reception of nuts 0 c, said screw-threaded endspassing through perforations in radial arms cast with the head-section1, as more plainly shown in Fig. 2.

G is the outer sheet-metal cylindrical casing supported from the base 15and carrying the lid or stove-top section O',covered bya lid, 0,provided, as usual, with openings for the escape of the heat. The saidcasing has at its lower end an opening that is constructed to fit overthe grate-section 1"", so that the casing may be readily removed bysimply lifting the same off the base. At its upper end the said casing Chas an opening, 0, in which is secured a conical door-framcfl", providedwith a door, c the lower edge,c",of which cone-frame projects over theoutwardly-flaring wall of the feed-hopper, so that when fuel isintroduced into said hopper it cannot fall between the fire pot and theinclosingcase. The casing G is also provided with an opening, 0,opposite the short flue p of the firepot I, for the passage of thedraft-pipe and its connection with said short flue.

II is the inner casing, which is shorter than the casing O and surroundsthegreater part of the fire-pot and serves to protect the outer casingfrom the action of the heat, and in order to adapt the same for removalI employ flexible sheet metal that is secured at its edges by means ofbuttons 71, engaging button-holes h, Fig. 11., formed along said edges,so that said casing II may be readily nnfastened, opened, and removedfrom around the firepot. Instead of buttons and bl1t|LOl1-]10iCS,SiOtSand hooks or other like fastening devices may be employed, as will bereadily understood.

Having now particularly described and ascertained the nature of my saidinvention and 110w the same is tobe performed,what I claim, and desireto secure by Letters Patent, is

1. In aheater, a fire-pot havingaportion of its shell deflected inwardlyto form an inwardly projecting opened feed-hopper, said feed-hopperbeing provided at its inner end with a seat for a lid, substantially asand for the purposes specified.

2. In aheater, a fire-pot having a portion of its shell deflectedinwardly at an angle to the vertical axis of said fire-pot to form aninwardly'projecting feed'hopper, said deflected portion of the shellbeing provided at its inner open end with a seat for a lid and at itslower outer edge with an outward]yprojecting flaring lip or flange,substantially as and for the purposes specified.

3. In a heater, a firepot having a portion of its shell deflectedinwardly at an angle to the vertical axis of said fire-pot, saiddeflected portion of the shell being gradually contracted to form aninwardly-proj ecting and inwardlytapering feed-hopper, and provided atits inner open end with a seat for a lid, substantially as and for thepurposes specified.

4. In a heater, a fire'pot having a portion of its shell deflectedinwardly to form an inwardly-projecting feed-hopper and anoutwardly-projecting flaring lip or flange, in combination with aninclosing-casing of greater diameter than the fire-pot, said casingbeing provided with an opening opposite the inwardly-deflected portionof said shell, said opening being provided with an inwardly-projectinglip or flange arranged to overlap the outwardly-projecting flange onsaid shell, substantially as and for the purposes specified.

5. In a heater, a fire-pot provided at its upper end with a horizontalshort flue, p, and having a portion ofitsshell deflected inwardlyimmediately below said short flue to form an inwardly-projectingfeed-hopper, and a con traeted vertical passage leading from the firepotto said flue, said deflected portion of the shell being provided at itsinner open end with a seat for a lid, substantially as and for thepurposes specified.

6. In a heater, the combination, with the fire-pot and grate and afeed-hopper formed by a recess or depression in said fire-pot, of anouter inclosing-easing provided with a fueldoor opposite thefeed-hopper, an intermediate casing shorter than the outer casingarranged to form a heat-chamber between it and the fire-pot and theouter casing respectively, and a bridge extending from the feedhopper tothe fuel-door to prevent fuel falling into the heat-chambers, asdescribed.

7. The grateseetion I, substantially of the form as shown and described,in combination with the hollow foot-piece F, provided with air-ports,substantially as and for the purposes specified.

8. The combination, with the ash-pit sec tion of the grate-chamberprovided underneath its open end with a toothed rack, and a sliding doorfor said open end, of a lock for said door, comprising a spring-boltarranged within a housing and adapted to engage the teeth of the rack,and a tubular key screwthreaded interiorly to screw onto the bolt end,substantially as and for the purposes specified.

9. In a heater, a firepot having afeed-hopper at an angle to thevertical axis of said lire-pot, said hopper being formed by aninwardly-projecting tubular portion, the lower edge of the mouth or feedend of said portion flaring outwardly, in combination with aninclosing-casing having a fuel-apertureregistering with the feed-hopper,and a door for said aperture provided with an inwardly-projecting flangeoverlapping the outwardly-flaring edge of the hopper, substantially asand for the purposes specified.

10. In a stove, a grate-chamber or ash-pit, P having the form of a benttube or segment ofa hollow ring provided with a seat for a grate, thehorizontal grate G, removable from said seat, and the vertical grate G,arranged in front of grate G and removable from the chamber,substantially as and for the purposes specified.

11. In a heater, a fire-pot, a feed-hopper formed by a depression orrecess in said firepot, whereby its inner area is contracted, and ahorizontal short flue, 9, formed above said contracted portion, incombination with an inclosing-casing provided with a fuel-apertureopposite the feed-hopper and an aperture opposite the flue p for thepassage of the smokepipe, and a base for supporting said parts, withwhich base the inclosing-easing is detachably connected, whereby saidcasing may be removed after disconnecting the smokepipe withoutdisturbing the fire-pot, substantially as and for the purposesspecified.

12. In a stove, a fire-pot composed of a head-section provided withprojecting arms, a grate-section or ash-pit having the form of a benttube or segment of a hollow ring, semicircular or angular incross-section, a hollow foot-piece depending from the curved bottom ofsaid section, and one or more intermediate sections, in combination witha base, B, provided with radial arms, a seat-plate, B, for saidfoot-piece seated axially on the radial arms of the base B, and tie-rodsfor connecting the arms of the head-section of the fire-pot with thoseof the base, substantially as and for the purposes specified.

13. The combination,with the lire-pot 1 constructed substantially asdescribed, and the base B, to which said fire-pot is detachablyconnected by the rods E, of the outer casing,C, loosely seated on base Band provided with a fuel-aperture and an aperture for the passage ofthesmoke-pipe, and an intermediate shorter open-ended casing, H, alsoloosely seated on base B and having-its vertical meeting edgesdetachably connected together, substantially as and for the purposesspecified.

In testimony whereof I aflix my signature in presence of two witnesses.

HERMANN IIEIM. \Vitnesses:

EDMUND JUssnN, O'r'ro Sonrnrnn.

